diff options
Diffstat (limited to 'arch/mips/netlogic')
| -rw-r--r-- | arch/mips/netlogic/common/earlycons.c | 2 | ||||
| -rw-r--r-- | arch/mips/netlogic/common/smpboot.S | 157 | ||||
| -rw-r--r-- | arch/mips/netlogic/xlp/Makefile | 2 | ||||
| -rw-r--r-- | arch/mips/netlogic/xlp/nlm_hal.c | 52 | ||||
| -rw-r--r-- | arch/mips/netlogic/xlp/of.c | 34 | ||||
| -rw-r--r-- | arch/mips/netlogic/xlp/platform.c | 2 | ||||
| -rw-r--r-- | arch/mips/netlogic/xlp/setup.c | 24 | ||||
| -rw-r--r-- | arch/mips/netlogic/xlp/usb-init.c | 124 | ||||
| -rw-r--r-- | arch/mips/netlogic/xlr/Makefile | 2 | ||||
| -rw-r--r-- | arch/mips/netlogic/xlr/platform-flash.c | 220 | ||||
| -rw-r--r-- | arch/mips/netlogic/xlr/platform.c | 140 | ||||
| -rw-r--r-- | arch/mips/netlogic/xlr/setup.c | 2 |
12 files changed, 701 insertions, 60 deletions
diff --git a/arch/mips/netlogic/common/earlycons.c b/arch/mips/netlogic/common/earlycons.c index f193f7b3bd8..1902fa22d27 100644 --- a/arch/mips/netlogic/common/earlycons.c +++ b/arch/mips/netlogic/common/earlycons.c @@ -54,7 +54,7 @@ void prom_putchar(char c) #elif defined(CONFIG_CPU_XLR) uartbase = nlm_mmio_base(NETLOGIC_IO_UART_0_OFFSET); #endif - while (nlm_read_reg(uartbase, UART_LSR) == 0) + while ((nlm_read_reg(uartbase, UART_LSR) & UART_LSR_THRE) == 0) ; nlm_write_reg(uartbase, UART_TX, c); } diff --git a/arch/mips/netlogic/common/smpboot.S b/arch/mips/netlogic/common/smpboot.S index c138b1a6dec..a13355cc97e 100644 --- a/arch/mips/netlogic/common/smpboot.S +++ b/arch/mips/netlogic/common/smpboot.S @@ -54,28 +54,68 @@ XLP_IO_SYS_OFFSET(node) + XLP_IO_PCI_HDRSZ + \ SYS_CPU_NONCOHERENT_MODE * 4 -.macro __config_lsu - li t0, LSU_DEFEATURE - mfcr t1, t0 +#define XLP_AX_WORKAROUND /* enable Ax silicon workarounds */ - lui t2, 0x4080 /* Enable Unaligned Access, L2HPE */ - or t1, t1, t2 - li t2, ~0xe /* S1RCM */ +/* Enable XLP features and workarounds in the LSU */ +.macro xlp_config_lsu + li t0, LSU_DEFEATURE + mfcr t1, t0 + + lui t2, 0x4080 /* Enable Unaligned Access, L2HPE */ + or t1, t1, t2 +#ifdef XLP_AX_WORKAROUND + li t2, ~0xe /* S1RCM */ and t1, t1, t2 - mtcr t1, t0 +#endif + mtcr t1, t0 - li t0, SCHED_DEFEATURE - lui t1, 0x0100 /* Experimental: Disable BRU accepting ALU ops */ - mtcr t1, t0 +#ifdef XLP_AX_WORKAROUND + li t0, SCHED_DEFEATURE + lui t1, 0x0100 /* Disable BRU accepting ALU ops */ + mtcr t1, t0 +#endif +.endm + +/* + * This is the code that will be copied to the reset entry point for + * XLR and XLP. The XLP cores start here when they are woken up. This + * is also the NMI entry point. + */ +.macro xlp_flush_l1_dcache + li t0, LSU_DEBUG_DATA0 + li t1, LSU_DEBUG_ADDR + li t2, 0 /* index */ + li t3, 0x1000 /* loop count */ +1: + sll v0, t2, 5 + mtcr zero, t0 + ori v1, v0, 0x3 /* way0 | write_enable | write_active */ + mtcr v1, t1 +2: + mfcr v1, t1 + andi v1, 0x1 /* wait for write_active == 0 */ + bnez v1, 2b + nop + mtcr zero, t0 + ori v1, v0, 0x7 /* way1 | write_enable | write_active */ + mtcr v1, t1 +3: + mfcr v1, t1 + andi v1, 0x1 /* wait for write_active == 0 */ + bnez v1, 3b + nop + addi t2, 1 + bne t3, t2, 1b + nop .endm /* * The cores can come start when they are woken up. This is also the NMI * entry, so check that first. * - * The data corresponding to reset is stored at RESET_DATA_PHYS location, - * this will have the thread mask (used when core is woken up) and the - * current NMI handler in case we reached here for an NMI. + * The data corresponding to reset/NMI is stored at RESET_DATA_PHYS + * location, this will have the thread mask (used when core is woken up) + * and the current NMI handler in case we reached here for an NMI. * * When a core or thread is newly woken up, it loops in a 'wait'. When * the CPU really needs waking up, we send an NMI to it, with the NMI @@ -89,12 +129,12 @@ FEXPORT(nlm_reset_entry) dmtc0 k0, $22, 6 dmtc0 k1, $22, 7 - mfc0 k0, CP0_STATUS - li k1, 0x80000 - and k1, k0, k1 - beqz k1, 1f /* go to real reset entry */ + mfc0 k0, CP0_STATUS + li k1, 0x80000 + and k1, k0, k1 + beqz k1, 1f /* go to real reset entry */ nop - li k1, CKSEG1ADDR(RESET_DATA_PHYS) /* NMI */ + li k1, CKSEG1ADDR(RESET_DATA_PHYS) /* NMI */ ld k0, BOOT_NMI_HANDLER(k1) jr k0 nop @@ -114,21 +154,25 @@ FEXPORT(nlm_reset_entry) li t2, SYS_CPU_COHERENT_BASE(0) add t2, t2, t3 /* t2 <- SYS offset for node */ lw t1, 0(t2) - and t1, t1, t0 - sw t1, 0(t2) + and t1, t1, t0 + sw t1, 0(t2) /* read back to ensure complete */ - lw t1, 0(t2) + lw t1, 0(t2) sync /* Configure LSU on Non-0 Cores. */ - __config_lsu + xlp_config_lsu + /* FALL THROUGH */ /* * Wake up sibling threads from the initial thread in * a core. */ EXPORT(nlm_boot_siblings) + /* core L1D flush before enable threads */ + xlp_flush_l1_dcache + /* Enable hw threads by writing to MAP_THREADMODE of the core */ li t0, CKSEG1ADDR(RESET_DATA_PHYS) lw t1, BOOT_THREAD_MODE(t0) /* t1 <- thread mode */ li t0, ((CPU_BLOCKID_MAP << 8) | MAP_THREADMODE) @@ -139,31 +183,28 @@ EXPORT(nlm_boot_siblings) /* * The new hardware thread starts at the next instruction * For all the cases other than core 0 thread 0, we will - * jump to the secondary wait function. - */ + * jump to the secondary wait function. + */ mfc0 v0, CP0_EBASE, 1 andi v0, 0x7f /* v0 <- node/core */ -#if 1 - /* A0 errata - Write MMU_SETUP after changing thread mode register. */ + /* Init MMU in the first thread after changing THREAD_MODE + * register (Ax Errata?) + */ andi v1, v0, 0x3 /* v1 <- thread id */ bnez v1, 2f nop - li t0, MMU_SETUP - li t1, 0 - mtcr t1, t0 - ehb -#endif + li t0, MMU_SETUP + li t1, 0 + mtcr t1, t0 + _ehb -2: beqz v0, 4f +2: beqz v0, 4f /* boot cpu (cpuid == 0)? */ nop /* setup status reg */ - mfc0 t1, CP0_STATUS - li t0, ST0_BEV - or t1, t0 - xor t1, t0 + move t1, zero #ifdef CONFIG_64BIT ori t1, ST0_KX #endif @@ -183,9 +224,9 @@ EXPORT(nlm_boot_siblings) * For the boot CPU, we have to restore registers and * return */ -4: dmfc0 t0, $4, 2 /* restore SP from UserLocal */ +4: dmfc0 t0, $4, 2 /* restore SP from UserLocal */ li t1, 0xfadebeef - dmtc0 t1, $4, 2 /* restore SP from UserLocal */ + dmtc0 t1, $4, 2 /* restore SP from UserLocal */ PTR_SUBU sp, t0, PT_SIZE RESTORE_ALL jr ra @@ -193,7 +234,7 @@ EXPORT(nlm_boot_siblings) EXPORT(nlm_reset_entry_end) FEXPORT(xlp_boot_core0_siblings) /* "Master" cpu starts from here */ - __config_lsu + xlp_config_lsu dmtc0 sp, $4, 2 /* SP saved in UserLocal */ SAVE_ALL sync @@ -210,6 +251,12 @@ FEXPORT(xlp_boot_core0_siblings) /* "Master" cpu starts from here */ __CPUINIT NESTED(nlm_boot_secondary_cpus, 16, sp) + /* Initialize CP0 Status */ + move t1, zero +#ifdef CONFIG_64BIT + ori t1, ST0_KX +#endif + mtc0 t1, CP0_STATUS PTR_LA t1, nlm_next_sp PTR_L sp, 0(t1) PTR_LA t1, nlm_next_gp @@ -234,36 +281,36 @@ END(nlm_boot_secondary_cpus) */ __CPUINIT NESTED(nlm_rmiboot_preboot, 16, sp) - mfc0 t0, $15, 1 # read ebase - andi t0, 0x1f # t0 has the processor_id() - andi t2, t0, 0x3 # thread no - sll t0, 2 # offset in cpu array + mfc0 t0, $15, 1 /* read ebase */ + andi t0, 0x1f /* t0 has the processor_id() */ + andi t2, t0, 0x3 /* thread num */ + sll t0, 2 /* offset in cpu array */ - PTR_LA t1, nlm_cpu_ready # mark CPU ready + PTR_LA t1, nlm_cpu_ready /* mark CPU ready */ PTR_ADDU t1, t0 li t3, 1 sw t3, 0(t1) - bnez t2, 1f # skip thread programming - nop # for non zero hw threads + bnez t2, 1f /* skip thread programming */ + nop /* for thread id != 0 */ /* - * MMU setup only for first thread in core + * XLR MMU setup only for first thread in core */ li t0, 0x400 mfcr t1, t0 - li t2, 6 # XLR thread mode mask + li t2, 6 /* XLR thread mode mask */ nor t3, t2, zero - and t2, t1, t2 # t2 - current thread mode + and t2, t1, t2 /* t2 - current thread mode */ li v0, CKSEG1ADDR(RESET_DATA_PHYS) - lw v1, BOOT_THREAD_MODE(v0) # v1 - new thread mode + lw v1, BOOT_THREAD_MODE(v0) /* v1 - new thread mode */ sll v1, 1 - beq v1, t2, 1f # same as request value - nop # nothing to do */ + beq v1, t2, 1f /* same as request value */ + nop /* nothing to do */ - and t2, t1, t3 # mask out old thread mode - or t1, t2, v1 # put in new value - mtcr t1, t0 # update core control + and t2, t1, t3 /* mask out old thread mode */ + or t1, t2, v1 /* put in new value */ + mtcr t1, t0 /* update core control */ 1: wait j 1b diff --git a/arch/mips/netlogic/xlp/Makefile b/arch/mips/netlogic/xlp/Makefile index b93ed83474e..6b4b972218f 100644 --- a/arch/mips/netlogic/xlp/Makefile +++ b/arch/mips/netlogic/xlp/Makefile @@ -1,2 +1,4 @@ obj-y += setup.o platform.o nlm_hal.o +obj-$(CONFIG_OF) += of.o obj-$(CONFIG_SMP) += wakeup.o +obj-$(CONFIG_USB) += usb-init.o diff --git a/arch/mips/netlogic/xlp/nlm_hal.c b/arch/mips/netlogic/xlp/nlm_hal.c index 9428e7125fe..6c65ac70191 100644 --- a/arch/mips/netlogic/xlp/nlm_hal.c +++ b/arch/mips/netlogic/xlp/nlm_hal.c @@ -69,6 +69,32 @@ int nlm_irq_to_irt(int irq) return PIC_IRT_UART_0_INDEX; case PIC_UART_1_IRQ: return PIC_IRT_UART_1_INDEX; + case PIC_PCIE_LINK_0_IRQ: + return PIC_IRT_PCIE_LINK_0_INDEX; + case PIC_PCIE_LINK_1_IRQ: + return PIC_IRT_PCIE_LINK_1_INDEX; + case PIC_PCIE_LINK_2_IRQ: + return PIC_IRT_PCIE_LINK_2_INDEX; + case PIC_PCIE_LINK_3_IRQ: + return PIC_IRT_PCIE_LINK_3_INDEX; + case PIC_EHCI_0_IRQ: + return PIC_IRT_EHCI_0_INDEX; + case PIC_EHCI_1_IRQ: + return PIC_IRT_EHCI_1_INDEX; + case PIC_OHCI_0_IRQ: + return PIC_IRT_OHCI_0_INDEX; + case PIC_OHCI_1_IRQ: + return PIC_IRT_OHCI_1_INDEX; + case PIC_OHCI_2_IRQ: + return PIC_IRT_OHCI_2_INDEX; + case PIC_OHCI_3_IRQ: + return PIC_IRT_OHCI_3_INDEX; + case PIC_MMC_IRQ: + return PIC_IRT_MMC_INDEX; + case PIC_I2C_0_IRQ: + return PIC_IRT_I2C_0_INDEX; + case PIC_I2C_1_IRQ: + return PIC_IRT_I2C_1_INDEX; default: return -1; } @@ -81,6 +107,32 @@ int nlm_irt_to_irq(int irt) return PIC_UART_0_IRQ; case PIC_IRT_UART_1_INDEX: return PIC_UART_1_IRQ; + case PIC_IRT_PCIE_LINK_0_INDEX: + return PIC_PCIE_LINK_0_IRQ; + case PIC_IRT_PCIE_LINK_1_INDEX: + return PIC_PCIE_LINK_1_IRQ; + case PIC_IRT_PCIE_LINK_2_INDEX: + return PIC_PCIE_LINK_2_IRQ; + case PIC_IRT_PCIE_LINK_3_INDEX: + return PIC_PCIE_LINK_3_IRQ; + case PIC_IRT_EHCI_0_INDEX: + return PIC_EHCI_0_IRQ; + case PIC_IRT_EHCI_1_INDEX: + return PIC_EHCI_1_IRQ; + case PIC_IRT_OHCI_0_INDEX: + return PIC_OHCI_0_IRQ; + case PIC_IRT_OHCI_1_INDEX: + return PIC_OHCI_1_IRQ; + case PIC_IRT_OHCI_2_INDEX: + return PIC_OHCI_2_IRQ; + case PIC_IRT_OHCI_3_INDEX: + return PIC_OHCI_3_IRQ; + case PIC_IRT_MMC_INDEX: + return PIC_MMC_IRQ; + case PIC_IRT_I2C_0_INDEX: + return PIC_I2C_0_IRQ; + case PIC_IRT_I2C_1_INDEX: + return PIC_I2C_1_IRQ; default: return -1; } diff --git a/arch/mips/netlogic/xlp/of.c b/arch/mips/netlogic/xlp/of.c new file mode 100644 index 00000000000..8e3921c0c20 --- /dev/null +++ b/arch/mips/netlogic/xlp/of.c @@ -0,0 +1,34 @@ +#include <linux/bootmem.h> +#include <linux/init.h> +#include <linux/io.h> +#include <linux/of_fdt.h> +#include <asm/byteorder.h> + +static int __init reserve_mem_mach(unsigned long addr, unsigned long size) +{ + return reserve_bootmem(addr, size, BOOTMEM_DEFAULT); +} + +void __init free_mem_mach(unsigned long addr, unsigned long size) +{ + return free_bootmem(addr, size); +} + +void __init device_tree_init(void) +{ + unsigned long base, size; + + if (!initial_boot_params) + return; + + base = virt_to_phys((void *)initial_boot_params); + size = be32_to_cpu(initial_boot_params->totalsize); + + /* Before we do anything, lets reserve the dt blob */ + reserve_mem_mach(base, size); + + unflatten_device_tree(); + + /* free the space reserved for the dt blob */ + free_mem_mach(base, size); +} diff --git a/arch/mips/netlogic/xlp/platform.c b/arch/mips/netlogic/xlp/platform.c index 1f5e4cba891..2c510d58544 100644 --- a/arch/mips/netlogic/xlp/platform.c +++ b/arch/mips/netlogic/xlp/platform.c @@ -53,7 +53,7 @@ static unsigned int nlm_xlp_uart_in(struct uart_port *p, int offset) { - return nlm_read_reg(p->iobase, offset); + return nlm_read_reg(p->iobase, offset); } static void nlm_xlp_uart_out(struct uart_port *p, int offset, int value) diff --git a/arch/mips/netlogic/xlp/setup.c b/arch/mips/netlogic/xlp/setup.c index acb677a1227..3dec9f28b65 100644 --- a/arch/mips/netlogic/xlp/setup.c +++ b/arch/mips/netlogic/xlp/setup.c @@ -41,6 +41,8 @@ #include <asm/bootinfo.h> #include <linux/of_fdt.h> +#include <linux/of_platform.h> +#include <linux/of_device.h> #include <asm/netlogic/haldefs.h> #include <asm/netlogic/common.h> @@ -82,8 +84,10 @@ void __init prom_free_prom_memory(void) void xlp_mmu_init(void) { + /* enable extended TLB and Large Fixed TLB */ write_c0_config6(read_c0_config6() | 0x24); - current_cpu_data.tlbsize = ((read_c0_config6() >> 16) & 0xffff) + 1; + + /* set page mask of Fixed TLB in config7 */ write_c0_config7(PM_DEFAULT_MASK >> (13 + (ffz(PM_DEFAULT_MASK >> 13) / 2))); } @@ -100,6 +104,24 @@ void __init prom_init(void) nlm_common_ebase = read_c0_ebase() & (~((1 << 12) - 1)); #ifdef CONFIG_SMP nlm_wakeup_secondary_cpus(0xffffffff); + + /* update TLB size after waking up threads */ + current_cpu_data.tlbsize = ((read_c0_config6() >> 16) & 0xffff) + 1; + register_smp_ops(&nlm_smp_ops); #endif } + +static struct of_device_id __initdata xlp_ids[] = { + { .compatible = "simple-bus", }, + {}, +}; + +int __init xlp8xx_ds_publish_devices(void) +{ + if (!of_have_populated_dt()) + return 0; + return of_platform_bus_probe(NULL, xlp_ids, NULL); +} + +device_initcall(xlp8xx_ds_publish_devices); diff --git a/arch/mips/netlogic/xlp/usb-init.c b/arch/mips/netlogic/xlp/usb-init.c new file mode 100644 index 00000000000..dbe083a9353 --- /dev/null +++ b/arch/mips/netlogic/xlp/usb-init.c @@ -0,0 +1,124 @@ +/* + * Copyright (c) 2003-2012 Broadcom Corporation + * All Rights Reserved + * + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the Broadcom + * license below: + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * + * THIS SOFTWARE IS PROVIDED BY BROADCOM ``AS IS'' AND ANY EXPRESS OR + * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL BROADCOM OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR + * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, + * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE + * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN + * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include <linux/dma-mapping.h> +#include <linux/kernel.h> +#include <linux/delay.h> +#include <linux/init.h> +#include <linux/pci.h> +#include <linux/platform_device.h> + +#include <asm/netlogic/haldefs.h> +#include <asm/netlogic/xlp-hal/iomap.h> +#include <asm/netlogic/xlp-hal/xlp.h> +#include <asm/netlogic/xlp-hal/usb.h> + +static void nlm_usb_intr_en(int node, int port) +{ + uint32_t val; + uint64_t port_addr; + + port_addr = nlm_get_usb_regbase(node, port); + val = nlm_read_usb_reg(port_addr, USB_INT_EN); + val = USB_CTRL_INTERRUPT_EN | USB_OHCI_INTERRUPT_EN | + USB_OHCI_INTERRUPT1_EN | USB_CTRL_INTERRUPT_EN | + USB_OHCI_INTERRUPT_EN | USB_OHCI_INTERRUPT2_EN; + nlm_write_usb_reg(port_addr, USB_INT_EN, val); +} + +static void nlm_usb_hw_reset(int node, int port) +{ + uint64_t port_addr; + uint32_t val; + + /* reset USB phy */ + port_addr = nlm_get_usb_regbase(node, port); + val = nlm_read_usb_reg(port_addr, USB_PHY_0); + val &= ~(USB_PHY_RESET | USB_PHY_PORT_RESET_0 | USB_PHY_PORT_RESET_1); + nlm_write_usb_reg(port_addr, USB_PHY_0, val); + + mdelay(100); + val = nlm_read_usb_reg(port_addr, USB_CTL_0); + val &= ~(USB_CONTROLLER_RESET); + val |= 0x4; + nlm_write_usb_reg(port_addr, USB_CTL_0, val); +} + +static int __init nlm_platform_usb_init(void) +{ + pr_info("Initializing USB Interface\n"); + nlm_usb_hw_reset(0, 0); + nlm_usb_hw_reset(0, 3); + + /* Enable PHY interrupts */ + nlm_usb_intr_en(0, 0); + nlm_usb_intr_en(0, 3); + + return 0; +} + +arch_initcall(nlm_platform_usb_init); + +static u64 xlp_usb_dmamask = ~(u32)0; + +/* Fixup the IRQ for USB devices which is exist on XLP SOC PCIE bus */ +static void nlm_usb_fixup_final(struct pci_dev *dev) +{ + dev->dev.dma_mask = &xlp_usb_dmamask; + dev->dev.coherent_dma_mask = DMA_BIT_MASK(64); + switch (dev->devfn) { + case 0x10: + dev->irq = PIC_EHCI_0_IRQ; + break; + case 0x11: + dev->irq = PIC_OHCI_0_IRQ; + break; + case 0x12: + dev->irq = PIC_OHCI_1_IRQ; + break; + case 0x13: + dev->irq = PIC_EHCI_1_IRQ; + break; + case 0x14: + dev->irq = PIC_OHCI_2_IRQ; + break; + case 0x15: + dev->irq = PIC_OHCI_3_IRQ; + break; + } +} +DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_NETLOGIC, PCI_DEVICE_ID_NLM_EHCI, + nlm_usb_fixup_final); +DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_NETLOGIC, PCI_DEVICE_ID_NLM_OHCI, + nlm_usb_fixup_final); diff --git a/arch/mips/netlogic/xlr/Makefile b/arch/mips/netlogic/xlr/Makefile index f01e4d7a060..c287dea8757 100644 --- a/arch/mips/netlogic/xlr/Makefile +++ b/arch/mips/netlogic/xlr/Makefile @@ -1,2 +1,2 @@ -obj-y += setup.o platform.o +obj-y += setup.o platform.o platform-flash.o obj-$(CONFIG_SMP) += wakeup.o diff --git a/arch/mips/netlogic/xlr/platform-flash.c b/arch/mips/netlogic/xlr/platform-flash.c new file mode 100644 index 00000000000..340ab1601c4 --- /dev/null +++ b/arch/mips/netlogic/xlr/platform-flash.c @@ -0,0 +1,220 @@ +/* + * Copyright 2011, Netlogic Microsystems. + * Copyright 2004, Matt Porter <mporter@kernel.crashing.org> + * + * This file is licensed under the terms of the GNU General Public + * License version 2. This program is licensed "as is" without any + * warranty of any kind, whether express or implied. + */ + +#include <linux/device.h> +#include <linux/platform_device.h> +#include <linux/kernel.h> +#include <linux/init.h> +#include <linux/io.h> +#include <linux/delay.h> +#include <linux/ioport.h> +#include <linux/resource.h> +#include <linux/spi/flash.h> + +#include <linux/mtd/mtd.h> +#include <linux/mtd/physmap.h> +#include <linux/mtd/nand.h> +#include <linux/mtd/partitions.h> + +#include <asm/netlogic/haldefs.h> +#include <asm/netlogic/xlr/iomap.h> +#include <asm/netlogic/xlr/flash.h> +#include <asm/netlogic/xlr/bridge.h> +#include <asm/netlogic/xlr/gpio.h> +#include <asm/netlogic/xlr/xlr.h> + +/* + * Default NOR partition layout + */ +static struct mtd_partition xlr_nor_parts[] = { + { + .name = "User FS", + .offset = 0x800000, + .size = MTDPART_SIZ_FULL, + } +}; + +/* + * Default NAND partition layout + */ +static struct mtd_partition xlr_nand_parts[] = { + { + .name = "Root Filesystem", + .offset = 64 * 64 * 2048, + .size = 432 * 64 * 2048, + }, + { + .name = "Home Filesystem", + .offset = MTDPART_OFS_APPEND, + .size = MTDPART_SIZ_FULL, + }, +}; + +/* Use PHYSMAP flash for NOR */ +struct physmap_flash_data xlr_nor_data = { + .width = 2, + .parts = xlr_nor_parts, + .nr_parts = ARRAY_SIZE(xlr_nor_parts), +}; + +static struct resource xlr_nor_res[] = { + { + .flags = IORESOURCE_MEM, + }, +}; + +static struct platform_device xlr_nor_dev = { + .name = "physmap-flash", + .dev = { + .platform_data = &xlr_nor_data, + }, + .num_resources = ARRAY_SIZE(xlr_nor_res), + .resource = xlr_nor_res, +}; + +const char *xlr_part_probes[] = { "cmdlinepart", NULL }; + +/* + * Use "gen_nand" driver for NAND flash + * + * There seems to be no way to store a private pointer containing + * platform specific info in gen_nand drivier. We will use a global + * struct for now, since we currently have only one NAND chip per board. + */ +struct xlr_nand_flash_priv { + int cs; + uint64_t flash_mmio; +}; + +static struct xlr_nand_flash_priv nand_priv; + +static void xlr_nand_ctrl(struct mtd_info *mtd, int cmd, + unsigned int ctrl) +{ + if (ctrl & NAND_CLE) + nlm_write_reg(nand_priv.flash_mmio, + FLASH_NAND_CLE(nand_priv.cs), cmd); + else if (ctrl & NAND_ALE) + nlm_write_reg(nand_priv.flash_mmio, + FLASH_NAND_ALE(nand_priv.cs), cmd); +} + +struct platform_nand_data xlr_nand_data = { + .chip = { + .nr_chips = 1, + .nr_partitions = ARRAY_SIZE(xlr_nand_parts), + .chip_delay = 50, + .partitions = xlr_nand_parts, + .part_probe_types = xlr_part_probes, + }, + .ctrl = { + .cmd_ctrl = xlr_nand_ctrl, + }, +}; + +static struct resource xlr_nand_res[] = { + { + .flags = IORESOURCE_MEM, + }, +}; + +static struct platform_device xlr_nand_dev = { + .name = "gen_nand", + .id = -1, + .num_resources = ARRAY_SIZE(xlr_nand_res), + .resource = xlr_nand_res, + .dev = { + .platform_data = &xlr_nand_data, + } +}; + +/* + * XLR/XLS supports upto 8 devices on its FLASH interface. The value in + * FLASH_BAR (on the MEM/IO bridge) gives the base for mapping all the + * flash devices. + * Under this, each flash device has an offset and size given by the + * CSBASE_ADDR and CSBASE_MASK registers for the device. + * + * The CSBASE_ registers are expected to be setup by the bootloader. + */ +static void setup_flash_resource(uint64_t flash_mmio, + uint64_t flash_map_base, int cs, struct resource *res) +{ + u32 base, mask; + + base = nlm_read_reg(flash_mmio, FLASH_CSBASE_ADDR(cs)); + mask = nlm_read_reg(flash_mmio, FLASH_CSADDR_MASK(cs)); + + res->start = flash_map_base + ((unsigned long)base << 16); + res->end = res->start + (mask + 1) * 64 * 1024; +} + +static int __init xlr_flash_init(void) +{ + uint64_t gpio_mmio, flash_mmio, flash_map_base; + u32 gpio_resetcfg, flash_bar; + int cs, boot_nand, boot_nor; + + /* Flash address bits 39:24 is in bridge flash BAR */ + flash_bar = nlm_read_reg(nlm_io_base, BRIDGE_FLASH_BAR); + flash_map_base = (flash_bar & 0xffff0000) << 8; + + gpio_mmio = nlm_mmio_base(NETLOGIC_IO_GPIO_OFFSET); + flash_mmio = nlm_mmio_base(NETLOGIC_IO_FLASH_OFFSET); + + /* Get the chip reset config */ + gpio_resetcfg = nlm_read_reg(gpio_mmio, GPIO_PWRON_RESET_CFG_REG); + + /* Check for boot flash type */ + boot_nor = boot_nand = 0; + if (nlm_chip_is_xls()) { + /* On XLS, check boot from NAND bit (GPIO reset reg bit 16) */ + if (gpio_resetcfg & (1 << 16)) + boot_nand = 1; + + /* check boot from PCMCIA, (GPIO reset reg bit 15 */ + if ((gpio_resetcfg & (1 << 15)) == 0) + boot_nor = 1; /* not set, booted from NOR */ + } else { /* XLR */ + /* check boot from PCMCIA (bit 16 in GPIO reset on XLR) */ + if ((gpio_resetcfg & (1 << 16)) == 0) + boot_nor = 1; /* not set, booted from NOR */ + } + + /* boot flash at chip select 0 */ + cs = 0; + + if (boot_nand) { + nand_priv.cs = cs; + nand_priv.flash_mmio = flash_mmio; + setup_flash_resource(flash_mmio, flash_map_base, cs, + xlr_nand_res); + + /* Initialize NAND flash at CS 0 */ + nlm_write_reg(flash_mmio, FLASH_CSDEV_PARM(cs), + FLASH_NAND_CSDEV_PARAM); + nlm_write_reg(flash_mmio, FLASH_CSTIME_PARMA(cs), + FLASH_NAND_CSTIME_PARAMA); + nlm_write_reg(flash_mmio, FLASH_CSTIME_PARMB(cs), + FLASH_NAND_CSTIME_PARAMB); + + pr_info("ChipSelect %d: NAND Flash %pR\n", cs, xlr_nand_res); + return platform_device_register(&xlr_nand_dev); + } + + if (boot_nor) { + setup_flash_resource(flash_mmio, flash_map_base, cs, + xlr_nor_res); + pr_info("ChipSelect %d: NOR Flash %pR\n", cs, xlr_nor_res); + return platform_device_register(&xlr_nor_dev); + } + return 0; +} + +arch_initcall(xlr_flash_init); diff --git a/arch/mips/netlogic/xlr/platform.c b/arch/mips/netlogic/xlr/platform.c index eab64b45dff..71b44d82621 100644 --- a/arch/mips/netlogic/xlr/platform.c +++ b/arch/mips/netlogic/xlr/platform.c @@ -14,6 +14,7 @@ #include <linux/resource.h> #include <linux/serial_8250.h> #include <linux/serial_reg.h> +#include <linux/i2c.h> #include <asm/netlogic/haldefs.h> #include <asm/netlogic/xlr/iomap.h> @@ -97,3 +98,142 @@ static int __init nlm_uart_init(void) } arch_initcall(nlm_uart_init); + +#ifdef CONFIG_USB +/* Platform USB devices, only on XLS chips */ +static u64 xls_usb_dmamask = ~(u32)0; +#define USB_PLATFORM_DEV(n, i, irq) \ + { \ + .name = n, \ + .id = i, \ + .num_resources = 2, \ + .dev = { \ + .dma_mask = &xls_usb_dmamask, \ + .coherent_dma_mask = 0xffffffff, \ + }, \ + .resource = (struct resource[]) { \ + { \ + .flags = IORESOURCE_MEM, \ + }, \ + { \ + .start = irq, \ + .end = irq, \ + .flags = IORESOURCE_IRQ, \ + }, \ + }, \ + } + +static struct platform_device xls_usb_ehci_device = + USB_PLATFORM_DEV("ehci-xls", 0, PIC_USB_IRQ); +static struct platform_device xls_usb_ohci_device_0 = + USB_PLATFORM_DEV("ohci-xls-0", 1, PIC_USB_IRQ); +static struct platform_device xls_usb_ohci_device_1 = + USB_PLATFORM_DEV("ohci-xls-1", 2, PIC_USB_IRQ); + +static struct platform_device *xls_platform_devices[] = { + &xls_usb_ehci_device, + &xls_usb_ohci_device_0, + &xls_usb_ohci_device_1, +}; + +int xls_platform_usb_init(void) +{ + uint64_t usb_mmio, gpio_mmio; + unsigned long memres; + uint32_t val; + + if (!nlm_chip_is_xls()) + return 0; + + gpio_mmio = nlm_mmio_base(NETLOGIC_IO_GPIO_OFFSET); + usb_mmio = nlm_mmio_base(NETLOGIC_IO_USB_1_OFFSET); + + /* Clear Rogue Phy INTs */ + nlm_write_reg(usb_mmio, 49, 0x10000000); + /* Enable all interrupts */ + nlm_write_reg(usb_mmio, 50, 0x1f000000); + + /* Enable ports */ + nlm_write_reg(usb_mmio, 1, 0x07000500); + + val = nlm_read_reg(gpio_mmio, 21); + if (((val >> 22) & 0x01) == 0) { + pr_info("Detected USB Device mode - Not supported!\n"); + nlm_write_reg(usb_mmio, 0, 0x01000000); + return 0; + } + + pr_info("Detected USB Host mode - Adding XLS USB devices.\n"); + /* Clear reset, host mode */ + nlm_write_reg(usb_mmio, 0, 0x02000000); + + /* Memory resource for various XLS usb ports */ + usb_mmio = nlm_mmio_base(NETLOGIC_IO_USB_0_OFFSET); + memres = CPHYSADDR((unsigned long)usb_mmio); + xls_usb_ehci_device.resource[0].start = memres; + xls_usb_ehci_device.resource[0].end = memres + 0x400 - 1; + + memres += 0x400; + xls_usb_ohci_device_0.resource[0].start = memres; + xls_usb_ohci_device_0.resource[0].end = memres + 0x400 - 1; + + memres += 0x400; + xls_usb_ohci_device_1.resource[0].start = memres; + xls_usb_ohci_device_1.resource[0].end = memres + 0x400 - 1; + + return platform_add_devices(xls_platform_devices, + ARRAY_SIZE(xls_platform_devices)); +} + +arch_initcall(xls_platform_usb_init); +#endif + +#ifdef CONFIG_I2C +static struct i2c_board_info nlm_i2c_board_info1[] __initdata = { + /* All XLR boards have this RTC and Max6657 Temp Chip */ + [0] = { + .type = "ds1374", + .addr = 0x68 + }, + [1] = { + .type = "lm90", + .addr = 0x4c + }, +}; + +static struct resource i2c_resources[] = { + [0] = { + .start = 0, /* filled at init */ + .end = 0, + .flags = IORESOURCE_MEM, + }, +}; + +static struct platform_device nlm_xlr_i2c_1 = { + .name = "xlr-i2cbus", + .id = 1, + .num_resources = 1, + .resource = i2c_resources, +}; + +static int __init nlm_i2c_init(void) +{ + int err = 0; + unsigned int offset; + + /* I2C bus 0 does not have any useful devices, configure only bus 1 */ + offset = NETLOGIC_IO_I2C_1_OFFSET; + nlm_xlr_i2c_1.resource[0].start = CPHYSADDR(nlm_mmio_base(offset)); + nlm_xlr_i2c_1.resource[0].end = nlm_xlr_i2c_1.resource[0].start + 0xfff; + + platform_device_register(&nlm_xlr_i2c_1); + + err = i2c_register_board_info(1, nlm_i2c_board_info1, + ARRAY_SIZE(nlm_i2c_board_info1)); + if (err < 0) + pr_err("nlm-i2c: cannot register board I2C devices\n"); + return err; +} + +arch_initcall(nlm_i2c_init); +#endif diff --git a/arch/mips/netlogic/xlr/setup.c b/arch/mips/netlogic/xlr/setup.c index c9d066dedc4..81b1d311834 100644 --- a/arch/mips/netlogic/xlr/setup.c +++ b/arch/mips/netlogic/xlr/setup.c @@ -85,7 +85,7 @@ static void nlm_linux_exit(void) gpiobase = nlm_mmio_base(NETLOGIC_IO_GPIO_OFFSET); /* trigger a chip reset by writing 1 to GPIO_SWRESET_REG */ - nlm_write_reg(gpiobase, NETLOGIC_GPIO_SWRESET_REG, 1); + nlm_write_reg(gpiobase, GPIO_SWRESET_REG, 1); for ( ; ; ) cpu_wait(); } |